Electric fan.



F. DIEHL & A. F. BECKER.

ELECTRIC FAN.

APPLICATION FILED MAY 11, 1908.

924,601. Patented June 8, 1909.

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WITNESSES:

7 Z LLO bu; \C- BY v ATTORNEY i I UNITED STATES T ()Fldlilifi.

' armatore-frarne, one of which is shown as a bushing i) disposed withina lateral bearing "commodation 'to the armature-shaft 8,-by meansof thelocking screw'll. The arma- FREDERICK DIEHL AND ADOLPll F.

BECKER, 0F ELIZABETH, NETV JERSEY, ASSIGNORS 'lO DIEHL MANUFACTURING(JOMPAN Y, A (URPURATION OF NEW JERSEY.

ELECTRIC FAN.

Specification of Letters Patent.

Patented June 8, 1909.

Application filed May 11, 1908. Serial No. 432,048.

'To all whom it may concern:

Be it known that we, FREDERICK DIEH and ADoLPn F. BECKER, citizens ofthe United States, residing at Elizabeth, in the county of Union andState of New Jersey, have invented certain new and useful Improvementsin Electric Fans, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to an improvement in that class of electric fansforming the subject of the United States Patent to F. Diehl and A. F.Becker No.867,914, dated October 8, 1907, in which the pro )elling motorwhose armature-shaft carries the propeller-wheel is pivotally mountedupon a standard upon which it receives an oscillatory movement fordiffusion of the air current induced by the fan.

The present invention has for its object to improve the construction andincrease the effectiveness of the mechanism of the fan, and it consistsin the constructive features herein shown and described and pointed outin the appended claims.

In the accompanying drawings, Figure 1 is a perspective view of a fanembodying the present improvements, Fig. 2 an enlarged sectionalelevation of the mechanism for producing the oscillatory movement of themotor-framc upon its sup mrting standard, Fig. a rear side view of suchmechanism partially in section, and Fig. 4 a detail soclact-plu "-iownherein constructed with l the bearing screws 3; and *1. The motor isprovided with the usual armature whose shaft is 1SJ()1.U.lHtl(.tl111suitable bearings 1n the hub l0 of the motor-frame in which it issecurely locked irom endwise movement, while or standa d 1 having theverd yoke 2 sustaining the ver- 3 tional view of one of thespring-pressed conallowing aslight rocking movement for acnal gearwheel.

constitutes a rigid connection between the having a width equivalent tothe or curved concentrically with the axial lino ture-shaft carries atthe forward end the usual propeller-whe l 12 and has fixed there on onthe opposite end by means of a setscrew 13 an eccentriell encircled by awear ing ring 15 secured within the hub of the gear-wheel 25 by means ofthe pins 17.

Mounted loosely upon the bearing hub 10 is a sleeve 18 having in itsrearward face a cavity embracing the eccentric 14. Within the bottom ofthis cavity is fitted the annular plate 19 having its 'apertured innerportion fitted to the annular cut-away end portion of the bearing-boss10 and secured to the same byineans of fastening screws 20. To the outerperiphery of the plate 19 is fitted the correspondingly recessedadjacent face of a ring 21 locked from turning in respect of the same bymeans of one or more transverse pins 22. This ring 21 is provided withan annular series of gear-teeth to form an inter The almularaplate 19thus bearing hub 10 and the internal gear-wheel 21 which latter is thusheld in fixed relation with the motor-frame, of which the hub 10 isshown as an integral part.

Overlapping the internally toothed ring 21 is a second internallytoothed ring or internal.

gear having tee-t of substantially the same pitch but dillerir slightlyin number from those of the internal gear 21, the gear 23 having a'llange extending outwardly beyond the periphery of the gear 21 andbeing secured by fastening screws 24 to a seat provided there for in therecessed outer portion of the sleeve 18. The teeth of both internalgears 21 and 23 are engaged. upon one side of the armalure-shaft by acommon inter-meshing exterb Mnally toothed planet-gearwheel 25 havingwhich the motor-frame o is ournaled to oscuate, and having ffiillullintegral therewith upon the rear face of the member 18 and 50-,

cured thereto by means of suitable fastening screws 26, said ca .)-platehaving an axial bearing recess 27 to receive and support the outer endof the motor armature-shaft 8. he sleeve 18 is also provided with anoil- I cavity 28 closed by means of a screw-plug 29,

and in register with the alined oifholes 30 and 3i in the bearing huband bushing 9, re spectiveiy, through which oil is supplied to thesurface of the shaft 8. Y

The sleeve 1 is provided upon one side with a segmentalseries of radialsockets 32, in each of which is fitted a cylindrical plug having in itsouter end a necked or reduced portion 34, and itself provided in itsouter end with a cylindrical cavity or recess in which is pivoted thereduced inner end of a plug 36 of soft ,or yielding material, such asleather, preferably secured therein by means of a transverse pin. 37.Interposed between the inner ends of the socket 32 and the plug isa-spring operating to yieldingly maintain the plugs 36 in,outer-position upon the carrying sleeve 18 wherein they are adapted toestablish temporarily a rolling contact alternately with the parallelways 6 and 7 the outward movement of the plugs being limited byengagement of the inner end of the necked portion 34 with the headvof astop-screw 39 tapped into the carrier 18 with its head slightlyoverhanging or projecting into the outer end of the socket 32.

In'the operation of the device, the rotation of the motor-shaft 8 causesthe planet-gearwheel 25 to revolve upon the eccentric f4 and to thusimpart by a wedge-like action adifferential movement of the internalgear-wheel 21 in relation to the fixed internalgeai wheel 23, whichcauses the slow rotation of the sleeve or carrier 18, as described inthe said United States Patent No. 867,914. In the circular movement ofthe carrier 18 the heads of the wearing-plugs 36 successively engageeach of the ways 6 and 7, the spacing of the ways from the axis ofrotation being such that the wearing-plugs arecaused to yieldshghtly intheir rolling action upon the stationary ways, thus establishingacontinuous rolling contact therewith, every engagement of eachwayinvolving in practice the simultaneous contact of at least twoofthecontact-plugs,

thus producing a uniform swmging move ment of the motor-frame carryingthe actuating member or sleevel8 As will be readily understood, theengagement of the series of contact-plugs Withone of thestationary wayscarried by the standard 1 produces a swinging motion of the frame in onedirection, and the engagement of the other of such ways by thecontact-plugs produces the movementof the motor-frame in the oppositedirection.

While in practice'the segment occupied by v the series of contact-plugs36 is such that the motion of the motor-frame, in one direction isarrested'immeuiately at the end of their engagement with one of the waysand at the beginning of the engagement of the opposite way, in order toinsure against overthrowoi.

the motor-frame, the base of the yoke 7 is formed with transverseshoulders 41 and the motor-frame is provided adjacent the lower bearingcenter with a depending pin ii.) Whose engagement with thestop-shoulders 4i designed to insure against such overthrow.

Having thus set forth the nature of the invention, what we claimhereinis 1- 1. In an electric fan, incombination, a motor-frame having alateral b62t1l11gl)OSS, a standard upon which said motord'rame ispivotally mounted provided with a way adjacent said bearing-boss, amotor comprising an armature-shait, a circularly moving .actu-.

ating member mounted ,upon said bearing boss, operative connectionsbetween the armature-shaft and said actuating member for impartingcircular movements to the latter, and a segmental series ofindependently mounted and s pring-pressed frictional con tact pointscarried by said actuating member and adapted to successively andintermittingly engage said way upon the standard.

2. In an electric fan, in combination, a motor-frame having abearing-boss, a stand ard upon which said motor-frame is pivotallymounted provided with spaced parallel ways embracing said bearing boss,a motor comprising an armature-shaft, a rotary actuating member mountedupon said bearing fitted to said radial sockets in the rotary sleeve andprovided in their projecting outer ends with yielding caps or facings,springs interposed between the bottoms of said socketsand the containedplugs, and stops for limiting the outward movement of said plugs underthe action of said springs.

4. In an electric fan, in combination, a motor-frame, an armature-shaftournaled therein, a standard upon which said motorframe is pivotallymount ed provided with s aced parallel ways embracing said motor shaft,a rotary sleeve journalod upon the motor-frame intermediate said w ysand provided with a series of radial sockets, operative connectionsbetween the motor-shaft and said actuating membercontact-blocks fittedto said radial soclcets'in the rotary sleeve and provided with cavitiesin their outer ends, wearing blocks of yielding material having reducedportions inserted within the cavities in said contact-plugs, springsinterposed between the bottoms of said sockets and the contained plugs,and stops I, for limiting the outward mo vemen t of said plugs under theaction of said springs. I 5. In an electric fan, in combination, a

motor-frame, an armature-shaft journaled therein, a standard upon whichsaidmotorframe is pivotally mounted provided with spaced parallel waysembracing said motors aft, a rotary sleeve'journaled upon themotor-frame intermediate said ways and provided with a series of radialsockets, operative connections btween the motor-shaft and said movementunder the action of said-spring.

6. In an electric fan, in combination, a

motor-frame, an armature-shaft journaled therein, a standard upon whichsaid motorframe is pivotally mounted proyided with-a wa-y adjacentsald'motor-shaft, andhaving stop-shoulders upon opposite sides of thepivotal support of said motor-frame, a stopmember carried by saidmotorframe and movable therewith in a path Within which saidstop-shoulders of-' the standard are disosed, a circularlymovingactuating-mem- Ber mounted upon said bearing boss, opera tiveconnectionsbetween the armature shai't and said actuating member forimpartingcircular movements to the latter, and a segmental series of indL pen-dentlymounted contact-plugs carried by said actuating member andadapted to successively engage said way upon the standard with whichrolling contact is thus established. In testimonyywhereof, we havesigned our names to this specification, in the presence of twosubscribing witnesses.

FREDERICK DIEHL.

ADOIJPH F. BECKER.

Witnesses:

H. A. KORNEMANN,

' JosEPH 51*. J AQUITH.

